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Ductile Iron Casting

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Compared to other kinds of cast iron, specifically grey iron, ductile iron castings are much less brittle and are more resistant to impact and fracturing. This difference is attributed to the differing structure within the iron. Read More…

Ductile Iron Casting Ductile iron, a synthetic metal material that was invented in the middle of the twentieth century, is one type of iron used to make cast iron parts and products.
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Leading Manufacturers

Webster City, IA  |  515-832-1722

Seneca Foundry is a manufacturer of gray and ductile iron castings, ranging in size from ounces to 250 pounds. Our customer base is from a wide range of industries, such as agriculture, industrial, cookware and more. We offer a variety of molding processes including green sand, lost foam, and no-bake. Our versatility enables us to give the customer the best solution for their casting needs. Contact us today to get started!

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Seneca Foundry, Inc. $$$

Beaver Dam, WI  |  920-887-0395

Kirsh Foundry is a leading manufacturer of gray iron castings, ductile iron castings and malleable iron castings. We provide castings ranging in size from mere ounces to 75 pounds and in runs from prototype to medium volume. For more information, please call or visit our website today!

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Kirsh Foundry, Inc. $$$

Middlesboro, KY  |  800-245-5521

J.R. Hoe is a manufacturer innovative, high-quality iron castings and fabricated metal products based out of the United States. Customer Satisfaction is their main mantra and is something that they use to measure their success. J.R. Hoe is certified by American Institute of Steel Construction (AISC). They have successfully completed projects throughout the eastern U.S. and is well known for their accuracy and efficiency.

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J.R. Hoe $$$

Diamond Bar, CA  |  877-484-6776

Impro Industries is globally recognized as a leading provider of high-precision, high-complexity, and mission-critical casting and machined components. Industries served include automotive, aerospace, medical, and many mor. Our team is dedicated to the quality of our every project, ensuring the highest customer satisfaction. Contact us today to learn more about our grey iron casting capabilities.

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Impro Industries USA, Inc. $$$

South Coffeyville, OK  |  918-255-6500

SP Foundry is the foundry to contact if you are looking for ductile iron castings and gray iron castings from 25 to 1,500 pounds. We produce quantities from 25 to 5,000 pounds and have two molding lines—14/14 flasks, 28”x40”, 500 molds daily; 22/22 flasks, 44”x56”, 100 molds daily.

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SP Foundry $$$

St. Paul, MN  |  651-778-3300

Northern Iron & Machine for finished castings ready for installation. Ductile grey iron and Austempered ductile castings, small to large quantities. Prototypes up to 500 lbs. and castings up to 250 lbs. Machining, painting, assembly. ISO 9001:2000 certified. In-house metallurgical lab. Industries: OEM, Oil-Field, Off-Highway, Agriculture, Fire Fighting, Locomotive, Wind.

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Northern Iron & Machine $$$
placeholder image Seneca Foundry, Inc. Kirsh Foundry, Inc. J.R. Hoe Impro Industries USA, Inc. SP Foundry Northern Iron & Machine

Both ductile iron and grey iron contain graphite, but the graphite takes on very different shapes in these two materials. In grey iron, the graphite takes on sharp flake shapes which create points of high stress within the metal, making the material brittle and easily fractured. The graphite in ductile iron, however, takes on a spherical or nodular shape, which greatly improves the ductility of the material.

The name ductile iron is actually a very broad term for many different kinds of ductile iron materials. This kind of iron comes in many varieties which are distinguished based on their individual constituents. Many different elements can be added to the iron composition to enhance or alter its properties. For example, magnesium is commonly used as the “nodulizing element,” but other elements like tellurium, cerium, and yttrium can also be used for this same purpose.

Additionally, other elements, such as copper, nickel, tin and chromium, can be used to enhance other properties like tensile strength and corrosion resistance. Therefore, ductile iron can be made with very different compositions.

Due to its enhanced durability, ductile iron is used in many different industries for all kinds of applications. Ductile iron is especially useful in applications which require greater strength than that provided by aluminum but do not require steel.

Thus the automotive, agricultural, oil and manufacturing industries gain great advantages from this material. The majority of ductile iron production is dedicated to creating pipes for water and sewer applications.

Ductile Iron Casting Informational Video